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70490476 = 2273768041
BaseRepresentation
bin1000011001110…
…01100101101100
311220122021202101
410030321211230
5121021143401
610554504444
71514105410
oct414714554
9156567671
1070490476
11368765a1
121b735124
13117b0b54
14950cd40
1562c6101
hex433996c

70490476 has 24 divisors (see below), whose sum is σ = 144793376. Its totient is φ = 29393280.

The previous prime is 70490471. The next prime is 70490507. The reversal of 70490476 is 67409407.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (70490471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32985 + ... + 35056.

Almost surely, 270490476 is an apocalyptic number.

It is an amenable number.

70490476 is an abundant number, since it is smaller than the sum of its proper divisors (74302900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70490476 is a wasteful number, since it uses less digits than its factorization.

70490476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68089 (or 68087 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 70490476 is about 8395.8606467711. The cubic root of 70490476 is about 413.0888579138.

The spelling of 70490476 in words is "seventy million, four hundred ninety thousand, four hundred seventy-six".

Divisors: 1 2 4 7 14 28 37 74 148 259 518 1036 68041 136082 272164 476287 952574 1905148 2517517 5035034 10070068 17622619 35245238 70490476